130 lines
4.2 KiB
PHP
130 lines
4.2 KiB
PHP
<?php
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namespace App\Http\Controllers\Utility;
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use App\Http\Controllers\Controller;
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use Config;
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use Exception;
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use Schema;
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class LibraryController extends Controller
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{
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public static function getFileVersion()
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{
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try {
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$app = Config::get('app.version');
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if ($app) {
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return preg_replace('/[^0-9,.]/', '', $app);
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} else {
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return 0;
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}
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} catch (Exception $ex) {
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return 0;
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}
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}
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public static function getDatabaseVersion()
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{
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try {
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$database = self::isDatabaseSetup();
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if ($database == true) {
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if (Schema::hasColumn('settings_system', 'version')) {
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return \DB::table('settings_system')->where('id', '=', '1')->first()->version;
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} else {
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return 0;
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}
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} else {
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return 0;
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}
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} catch (Exception $ex) {
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return 0;
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}
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}
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public static function isDatabaseSetup()
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{
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try {
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if (Schema::hasTable('settings_system')) {
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return true;
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}
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} catch (Exception $e) {
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return false;
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}
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}
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public static function encryptByFaveoPublicKey($plaintext)
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{
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try {
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// Compress the data to be sent
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$plaintext = gzcompress($plaintext);
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// Get the public Key of the recipient
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$path = storage_path('app'.DIRECTORY_SEPARATOR.'faveo-public.key');
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$key_content = file_get_contents($path);
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//dd($path);
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$publicKey = openssl_pkey_get_public($key_content);
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//dd($publicKey);
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$a_key = openssl_pkey_get_details($publicKey);
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// Encrypt the data in small chunks and then combine and send it.
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$chunkSize = ceil($a_key['bits'] / 8) - 11;
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$output = '';
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while ($plaintext) {
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$chunk = substr($plaintext, 0, $chunkSize);
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$plaintext = substr($plaintext, $chunkSize);
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$encrypted = '';
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if (!openssl_public_encrypt($chunk, $encrypted, $publicKey)) {
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throw new Exception('Failed to encrypt data');
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}
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$output .= $encrypted;
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}
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openssl_free_key($publicKey);
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// This is the final encrypted data to be sent to the recipient
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$encrypted = $output;
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return $encrypted;
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} catch (Exception $ex) {
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dd($ex);
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}
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}
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public static function decryptByFaveoPrivateKey($encrypted)
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{
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try {
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//$encrypted = p¥Ùn¿olÓ¥9)OÞݸÔvh§=Ìtt1rkC‰É§%YœfÐS\BâkHW€mùÌØg¹+VŠ¥²?áÙ{/<¶¡£e¡ˆr°(V)Öíàr„Ž]K9¤ ÿÖ¡Åmž”üÈoò״µºŽ06¼e €rœ['4çhH¾ö:¨œ–S„œ¦,|¤ÇqÂrÈŸd+ml‡ uötφûóŽ &›áyÙ(ÆŒÁ$‘¥±Zj*îàÒöL‘ˆD†aÉö_§ 趰·V„Þú]%ÅR *B=ž éršæñ*i+á±èç|c¹ÑߟF$;
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// Get the private Key
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$path = storage_path('app'.DIRECTORY_SEPARATOR.'faveo-private.key');
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$key_content = file_get_contents($path);
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if (!$privateKey = openssl_pkey_get_private($key_content)) {
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die('Private Key failed');
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}
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$a_key = openssl_pkey_get_details($privateKey);
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// Decrypt the data in the small chunks
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$chunkSize = ceil($a_key['bits'] / 8);
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$output = '';
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while ($encrypted) {
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$chunk = substr($encrypted, 0, $chunkSize);
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$encrypted = substr($encrypted, $chunkSize);
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$decrypted = '';
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if (!openssl_private_decrypt($chunk, $decrypted, $privateKey)) {
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die('Failed to decrypt data');
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}
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$output .= $decrypted;
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}
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openssl_free_key($privateKey);
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// Uncompress the unencrypted data.
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$output = gzuncompress($output);
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echo '<br /><br /> Unencrypted Data: '.$output;
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} catch (Exception $ex) {
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dd($ex);
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}
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}
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}
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